If you can't figure out what the project is, while the description says "...card emulation more stable. And gave the chameleon the ability to read, write, and decrypt cards...." then I'm not sure you should be playing with software that can easily cross the line of breaking laws. Grey-hat software like this rarely screams "NFC CRACKER" since it hurts the credibility, is more likely to get it flagged by automated scans, and attracts skids. Look what happened to the flipper...
Also, my comment was in reply to 'What if I want to learn more about it'. RTFM is the objectively correct response, no short description is going to help there. Maybe we have different ideas of what "learn more" means